This aerial drone footage shows floods entering homes in northeast Thailand this morning.

The deluge was triggered by heavy rains, which caused the Mun River in Nakhon Ratchasima province to spill over into over 20 houses, reportedly for the second time this monsoon season.

Floods reaching 40 to 50 centimetres were recorded on September 21, forcing locals to camp out on streets away from the riverbanks.

Residents said the water level's sudden rise caught them off guard and left their belongings and properties damaged.

Homeowner Banjong Peumpoon, 60, said: 'This round of flooding in my house was more severe than the last because it came so quickly.

'Villagers had to rush to fill sandbags and place them in flood-prone areas.'

The flooding was also worsened by the release of water from the nearby Phimai Dam. Authorities said they were pumping excess water into the Mun River 'to prevent flood from flowing into ancient sites and economic sources' in the region's Phimai District.

Thailand and other countries in Southeast Asia, such as Malaysia, Indonesia and the Philippines, are in the middle of their tropical monsoon rainy season, which lasts from May or June until November.

Soaring temperatures reaching 35 degrees Celsius are often followed by powerful tropical storms with thunder, lightning, rain and flash floods which cause rivers to flow faster and become dangerous.

This year, meteorologists have blamed climate change for the sustained heavy rain, which has been hitting the Thai capital and provinces around the country causing severe floods for several weeks.

Thailand's Center for Climate Change and Disaster claimed the coming months could see heavier, longer rainfalls, due to 'climate change'.

Local media reported that the country has this year seen 'an unusually sustained and persistent rainy season'.